The Lutherans were members of an annual ecumenical delegation to Rome on the part of Catholics, Orthodox, and Lutherans to celebrate the feast day of St. Henry of Uppsala, who is credited with the evangelization of Finland in the 12th century.
After an audience with the pope, the delegation was present at a celebration of the Catholic mass. According to a Lutheran bishop who was present, at the time of communion the non-Catholics placed their right hands on their left shoulders, a traditional way of indicating that they were ineligible to receive the Eucharist. However, the celebrating priests insisted on giving them communion.